Volcanoes are created when lava cools and accumulates over time. What type of rock are volcanoes made of?
A. metamorphic rock
B. sedimentary rock
C. granite
D. igneous rock
D. igneous rock
Igneous rock is formed when lava cools. Over time, cooled lava accumulates and can form a volcano.
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How can you tell whether a sugar solution is saturated or not?
A. There will be a precipitate if the water is heated. B. As long as there are more water molecules than sugar molecules, there is a saturated solution. C. Add more sugar; if it dissolves, it is saturated. D. Cool the solution to see if there is a precipitate.
What is obliquity?
a. tilt of the Earth's axis b. shape of the Earth's orbit c. speed of rotation of the Earth on its axis d. wobble of the Earth's axis e. planetary alignment
Which of the following has the highest boiling point?
A) heptane B) hexane C) octane D) nonane
Fires that spread along the ground fueled by grasses and low shrubs are called _______________
Fill in the blank with correct word.